<select name="<?php echo $partial_field_name ?>">
    <?php if (!isset($partial_options[0])): ?>
    <option />
    <?php endif; ?>
    <?php foreach ($partial_options as $value => $name): ?><option value="<?php echo $value ?>" <?php if (isset($_REQUEST[$partial_field_name]) && $_REQUEST[$partial_field_name] == $value) echo 'selected'?>><?php echo $name ?></option><?php endforeach; ?>
</select>